html
    heda
        link(href='a.css',rel='stylesheet')
    style
    script(src='a.js')
    script alert('hello world');
    script.
        window.onload = function(){
            alert('0000');
        }
    body
        a(href='https://www.baidu.com') 百度
        div 100
            span 111
            ul
                li
        div(style='width:200px;height:200px;background=red;')
        div(style={width:'200px',height:'200px',background:'red'})
        div(class='cls1 cls2 cls3')
        div(class=['cls1','cls2','cls3'])
        div.box
        div#box1

        p&attributes({title:'测试',id:'demo'})

        div
            |ccc